Dash making machine



(No Model.) 3 sneets4sheet 2. R. G. WOOD.

DASH MAKING MACHINE.

(No Model.) 3 Sheets-Sheet 3. R. G. WOOD.

DASH MAKING MACHINE. No. 329,424. Patented 0013.27, 1885.

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Unirse STATES' PATENT Ormes.

RICHARD G. VOOD, OF CINCINNATI, OHIO, ASSIGNOR TO PATRICK REILLY ANDJAMES E. REILLY, OF NEWARK, NEW JERSEY.

DASH-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 329,424, dated October27, 1885.

Application tiled August 14, 1885.

To all-whom it may concern:

Be it known that I, RICHARD G. WOOD, aV

citizen of the United States, residing in Cincnnati, Hamilton county,Ohio, have invented certain new and useful Improvements in AutomaticLeather-Stretchers and Dash-Sacking Mechanisms, fully described andrepresented in the following speciiication and the accompanyingdrawings,forming a part of the same.

The object of this invention is to stretch leather by grasping itsopposite edges in any manufacturing process, for which purpose theleather may be clamped while the leather is either wet or dry, and theparticular application of the machine to stretching dash-leathers andfitting the frames thereto, as illustrated herein to show the operationof the machine. y

This invention consists in the combination, with a suitable frame, oftwo pairs of jaws adapted to grasp the leather and stretch itlongitudinally, and of two racks fitted in slides parallel with the jawsand adapted to force the dash-frame into the leather while stretched.

It also consists in several details of construction specically claimed.

Figure l represents the top of the machine, showing the dogs pushedinward to their fullest extent. Fig. 2 is an edge view of the same withthe jaws opened; and Fig. 3 is an end View of the same with the racksextended to admit the dash-frame, the frame being in section on line a:x in Fig. l. Figs. 4 and 5 are respectively top and bottom views of themachine upon asmaller scale, Fig. 4 showing the application of adash-frame between two sheets of leather clamped in the jaws, while Fig.5 represents the bottom of the machine, to show the tting of the screwsto the jaws.

The frame of the machine is shown with four parallel bars,A A', acrosswhich the jawbedsB are fastened,with lugs B projecting inside the bars Aand bolted to seats C upon uides C, which are applied to the oppositeside of the frame to carry the racks D. Upon the lower side of eachjaw-bed is mounted a nut, e, and right and left hand screws f and g areiitted,respectively, to such nuts and united at the middle of theirlength, so as to Serial No. 174,394.

(No model.)

move the jaws longitudinally on the frame when the screw is turned bythe hand-wheels H at the ends thereof. j A movable jaw, I, is hinged tothe rear edge of each j aw-bed at I', and is pressed toward the bed byan eccentric, J, pivoted at its ends a in posts 7c, which are projectedfrom the jaw-beds through openings Z in the jaws. The jaw-beds and jawsare of sufcientlength to grasp the edge of the leather which is to bestretched, the latter being laid upon the jaw-bed and the edge of thejaw I pressed toward it by turning the cam with the handle N. To preventthe springing ofthe jaw and an imperfect grasp upon the leather at anypoint in its length, the eccentric is made as a roller nearly as long asthe jaw, with eccentric pivots a at each end, and the rigidity andextended bearing of such roller upon the back of the jaw suffices tohold the same rmly on the leather through its en- 7C tire length. Strapsm hold the jaws I n contact with the eccentrics, and the latter arerotated at pleasure by handles N, inserted in holes in eccentrics.

Fig. 4 shows a double sheet of leather, L, Yclamped by its oppositeedges in the jaws, and stretched by separating the same through theagency oi the screws j' g.

Pis the dash-frame, which is to be inserted between the two sheets ofleather while stretched, and o are dogs adapted to press against theouter end of the dash-frame and force it into the stretched leather,where it may be secured while the leather is under tension by rows ofstitches r, Aformed in the leather close to the edges of the dash-frame.

In Fig. 3 the guides C are clearly shown, as well as their mode ofattachment to the jaw-beds, although upon the opposite side of the framefrom the latter, and the racks D are shown provided with teeth D, intowhich is fitted a pinion, S,'mounted upon a spindle, s, provided with ahand-wheel, T, and hung in bearings at the outer end of the guide C. Thedogs o are slender bars clamped in sockets q upon the racks D, theirends being notched to bear against the dash-frame, so that the inwardmovement ofthe racks will push the dashframe firmly into the stretchedleather. Th

dogs showuinFig. 4. are shown provided wi.'

alateral prong at the inner side, adapted to engage with'suchir'ouframesas are very nar-- row, like those of wheel-guards, and the dogsmay be made of any other shape that is found necessary. The racks areshown in Fig. 2 fittedto'the guides C by opposite tongues d; but themeans for fitting the racks to the guides is immaterial, as'theessential feature of the invention is the combination, with the twomovable jaws and their right and left hand screws, of the rackssustained upon the same frame and operating parallel with the jaws topress-the ironframe intothe leather While under tension.

claim herein is- In a leather-stretching machine, the clampingmechanismconsisting in the'jaW- bedl'the jaw Lhinged thereto a'tonee'dgeas described, the opeingslthrou'g'h' the jaws,- th'e'postsilc,attached to th'e bediand projectedthrough the openings, and theeocentricJ,

'secured thereto'upon the opposite side of the frame, the nuts e, andscrews f g, applied to the frame and jaws, and the racks D and pinionsS, mounted upon spindles s, substan- `tially as herein shown anddescribed.

Having thus described my inventio'mwliatl f 'In tstim'onywhereof vIhavehereunto set my hand in the presence of two subscribing witnesses.

RICHARD G. woon.

Witnesses# A I. P. CASEY, 11. U. CAMPBELL.

